Carbonizing pipe-bowls.



W. A. PAUL.

CARBONIZING PIPE BOWLS.

APPLICATION FILED 14.19141 Patented Oct. 12, 1915.

WESLEY A. PAUL, OF MOLINE, ILLINOIS.

CARBONIZING PIPE-BOWLS.

Specification of Letters Patent.

Patented Oct. 12, 1915.

Application filed April 4, 1914. Serial No. 829,666.

To all whom it may concern:

Be it known that I, WESLEY A. PAUL, a citizen of the United States, residing at Moline, in the county 'of Rock Island and State of Illinois, have invented certain new and useful Improvements in Carbonizing Pipe- Bowls, of which the following is a specification, reference being had therein to the accompanying drawing. v

My invention relates to means for carbonizing the interior of pipes, or other art 1- cles, where arcarbonization of the interior 1s to be preferred before the pipe is to be used. The device I employ for this purpose forms a thin layer of carbonized material, and de stroys the acrid flavor of the wood so that the pipe presents from the beginning of its use a condition resulting in a dry and pleasant smoke. To pipesmokers, the breaking in of a pipe is exceedingly distasteful because of the flavor of theburning wood, and it is only after continued use of the pipe that the interior becomes sufficiently carbonized to eliminate the flavor of the burning wood, and the attendant gases due thereto. My device, also, can be applied for-drying out pipes which have been in use for some time, and have become soaked withjmoisture.

Referring to the drawings, in which similar numerals indicate identical parts Figure 1 is a vertical section of a pipe and my device applied thereto. Fig. 2 is a section on the line w-az of Fig. 1.

The pipe-bowl 1 is made of wood, or other combustible material, and of an ordinary shape. The main member 2 of my device, to which all the other parts are attached, is made of a non-conducting material and has its lower end beveled, as shown, to fit pipebowls of diflerent sizes, and to preserve a tight joint during the time that the device is being used. To cover the various parts of my device, I employ a cap 3, lined on the inside with a non-conducting material 1, and having an opening at its upper end through which wires 5 and 6 lead to an ordinary plug 7, commonly used to fit into a socket of the usual form of incandescent light fixture. Wires 5 and 6 are attached to binding posts 8 and 9, and held in contact with strips 10 and 11 of conducting material in a central opening projecting longitudinally through the center of the member 2. A member 12, made preferably of porcelain, projects into this opening, and has conducting strips 13 and 14, which contact with the strips 10 and 11. A wire 15, fitted in a groove in the upper portion of the member 12 and contacting with the strip 1 1, is wound in a coil enveloping the lower portion of the member 12, and enters the opening extending upwardly through the member 12 and emerges into a groove, where it contacts with the conducting strip 13.

In general use the plug 7, which is attached to the wires 5 and 6, the latter being of any length desired, is inserted into a socket of an ordinary incandescent light fixture, and after my device is applied to the pipe, fitting snugly the edges of the pipebowl and excluding'the air, as shown in the drawing, the electric current is then turned on until the interior of the pipe-bowl has been carbonized to the desired degree, or until the pipe has been thoroughly dried out by the heat of the current if my device is used for the purpose of drying. It will be apparent, the bowl of the pipe being closed, the oxygen .in the bowl, when my device is applied and the electric current turned on, is

quickly consumed, and the interior of the bowl is carbonized instead of being consumed to an ash; there being no escape for the heat, except through the pipe-stem, it is practically impossible for additional air to enter the bowl during the process of carbonization, or while the bowl is being dried out when my device is used for this latter purpose.

When it becomes necessary to disconnect the parts of my device, the cap 3, which is held in place on the member 2 by spring points 16 engaging with suitable depressions in the member 2, can be readily pulled away from the member 2, and moved upward 0n the wires 5 and 6, thus exposing the various parts of my device. The member 12 is held in place by set screw 17, as shown, and by loosening the latter, the member 12 can be removed entirely, or adjusted to suit the depth of any pipe-bowl.

It is evident that in the use of my device perfect carbonization can only result, for the bowl opening is closed by thedevice, excluding air during the period necessary for treating the pipetga'ses that are generated by the action of the heat upon the interior of the bowl can only escape through the stem orifice expelling any air therein, and preventing the further admission of air therethrough. Consequently during the entire treatment of the pipe the carbonization is efiected in the absence of oxygen, the surface of the wood is not destroyed, and the interior of the pipe becomes lined with a layer of porous charcoal. If the air was not excluded during the treatment, the surface of the interior of the pipe-bowl would be burnedto an ash, enlarging the bowl and injuring it beyond repair.

I claim 1. A device for carbonizing or drying the interior of pipe-bowls or the like, comprising a heat conducting member to be inserted in the bowl, and means to close the bowl against the admission of air.

2. A device for carbonizing or drying the interior of pipe-bowls or the like, comprising a heat conducting member to be inserted in the bowl and a member to fit the edge of the bowl to close the latter against the admission of air.

3. A device for carbonizing or drying the interior of pipe-bowlsor the like, comprising a heat conducting member to be inserted in the bowl, means to connect said member with a source of heat supply, and a member to fit the edge of the bowl to close the latter against the admission of air.

4. A device for carbonizing or drying the interior of pipe-bowls or the like, comprising a member to close the pipe-bowl against the admission of air, a second member carried by the first member and adapted to be inserted in the pipe-bowl, a heat conductor carried by the second member and in contact with a conductor on the first member, and means to connect the conductor on the first member with a source of heat supply.

5. A device for carbonizing or drying the interior of pipe-bowls or the like, comprising a member to close the pipe-bowl against the admission of air and having a central opening, a second member carried in said opening and adapted to be inserted in the pipebowl, a heat conductor carried by the second member and in contact with a conductor on the first member, and means to connect the conductor on the first member with a source of heat supply.

6. A device for carbonizing or drying the interior of pipe-bowls or the like, comprising a member having a central opening and adapted to close the pipe-bowl against the admission of air, conducting strips secured in said opening, and connected with a source of heat supply, a second member carried in said opening and adapted -to be inserted in the pipe-bowl, conducting strips secured to said second member and contacting with the conducting strips on the first member, and awire coil carried by the second member and connected with the conducting strips thereon.

7. A device for carbonizing or drying the interior of pipe-bowls or the like, comprising a member having a central opening and adapted to close the pipe-bowl against the admission of air, wires to connect with a source of electric supply and connected to conducting strips in said opening, a second member supported in said opening and longitudinally adjustable therein, said second member adapted to be inserted in a pipebowl and having conducting strips thereon contacting with the conducting strips on the first member, and a wire coil carried by the second member and connected with the conducting strips thereon.

8. A device for carbonizing or drying the interior of pipe-bowls or the like, comprising a member adapted to close the pipe-bowl against the admission of air, a second member carried by the first member and suitable for insertion in the pipe-bowl, a heat conductor carried by said second member and in contact with conducting means on the first member, wires connecting with said means and adapted to be attached to a source of heat supply, and a cap lined with insulating material, and having an opening therein through which said wires lead.

In testimony whereof I afiix my signature, in presence of two witnesses.

WESLEY A. PAUL. lVitnesses:

JESSIE L. SIMSER, BERTHA A. MAURER. 

